That's Not My Neighbor

That’s Not My Neighbor is an indie horror game from developer Nacho Sama, which has taken the gaming world by storm with its bizarre premise and pixelated thrills.

What is That’s Not My Neighbor

That’s Not My Neighbor is a 2D horror game set in a 1955 apartment building plagued by doppelgangers—sinister copycats posing as residents. Developed by Nacho Sama and originally released on itch.io on February 15, 2024, and later on Steam on March 11, 2025. This indie game combines job simulation mechanics with psychological horror. You play as a Department Doppelganger Detection (D.D.D.), tasked with stopping these shapeshifters. One wrong call can have dire consequences.

How to play That's Not My Neighbor game

With equipment like a phone, checklist, security window, and panic button, your job is to verify the identities of tenants. Each of your actions will have its own surprising ending.

Check ID: Match the name, apartment number, and photo to the tenant list.

Observe Details: Look for oddities—extra teeth, mismatched voices, or forgotten accessories.

Verify: Call residents to confirm their whereabouts if something seems off.

Act Fast: Approve entry or press the panic button to summon the DDD.

Every decision builds tension. Let a doppelganger in, and the fate of the building is at stake. Curious? You can play That's Not My Neighbor for free online right now and test your skills.

Top Tips and Strategies

Subtle hints: Roman Stilnsky's doppelganger may have an extra mole, while Mia Stone may be missing her signature glasses.

Take your time: Double-check the ID against the tenant list—doppelgangers often get apartment numbers wrong.

Nightmare mode tip: On this harder difficulty, doppelgangers morph more quickly. Listen for distorted voices or twitchy limbs.

Be patient and wait: Take your time—accuracy is more important than speed.

Another horror game to try: The Baby in Yellow.